prerequisites do not work in checklist creation

[qzuw]

When creating new checklist item, there is option to set a prerequisite check for that checklist item (ie. if item B has prerequisite item A, item B should not be shown in the checklist, unless item A is checked first).

I seem to recall having seen this demonstrated as functional during development, but it is obviously broken now: when trying to use this, dropdown will always choose first available item, and then give error about circular dependencies.

Reading JSON view, it seems that in edit view checklist items do not possibly receive any id at all (or ids are removed), and thus references to other checklist items do not work. (I suspect tempId in JSON is workaround used make this work at the time, but now those too are set to null)